In the Principles of Sociology Spencer's most influential ideas have been that of the social organism, of the origination of religion out of the worship of ancestral ghosts, of the natural antagonism between nutrition and reproduction, industrialism and warfare.
Among other things for which he will be remembered was his origination of harvest festivals.
The objections to the Solomonic age as the time of origination of the book apply also to the period extending from Solomon through the 6th century.
Others are The Primitive Origination of Man (1677); Of the Nature of True Religion, &c. (1684); A Brief Abstract of the Christian Religion (1688).
There was a certain positive originality, however slight, to be detected in him, and I occasionally observed that he was thinking for himself and expressing his own opinion, a phenomenon so rare that I would any day walk ten miles to observe it, and it amounted to the re-origination of many of the institutions of society.